Some people try and preach that there are many ways to get into Heaven. Oprah is one of these people. She's told people on national television that there are several ways to get to the same place... through being nice, helping others, and so on.
That's not the case.
There is only one way to get there, through God's Son Jesus Christ. If you don't believe in him, then yes, Hell would be your final resting place.
He's not a vengeful God. He loves you even when you don't believe. At any point in your life, you can turn to Him, ask for forgiveness, and have a strong relationship with Him.
Here's some things to think about:
1) If you don't believe in God, what concern do you even have with an afterlife? Why worry about "burning" if you don't even believe Heaven and Hell exist?
2) God doesn't expect you to sell everything you own. He only wants 2 things from you. Your faith and your love. Only when you learn to love God, will you have a love for people. Helping people constantly shouldn't be considered a burden, rather a blessing, a wonderful opportunity that God has given you to influence the life of someone else. Appreciate it.
3) It doesn't hurt anyone believing in God. When we all die one day, at least those who believe have hope for eternity, while non-believers don't. If you're right, then so what? Still in the same place, but if you're wrong.... and God does exist, and Jesus did die for your sins, and there is a life after death with Him in Heaven, you're going to be missing out.
Hope you find peace in your life.